{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "264773",
    "entityType": "User",
    "nonce": "0x49cafce87b7d1ddb13f3c4296bc9b0e7f079852219ffea81ae9b94d451cf2208",
    "signature": "0x1531620f40d2b14d86e409c54910c411a54ca23c6f6e23227d7d01e201c7dd687ca62441f3e2ac601d74a056a79c0683212b2467e25c5f087e1a9abb0e24fe121b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}